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d35ca113d9
Need to reserved 16M for HV debug usage like sbuf/ramoops before HV RAM START to avoid possible conflict with HV memory. Tracked-On: #3602 Signed-off-by: Wei Liu <weix.w.liu@intel.com> Acked-by: Victor Sun <victor.sun@intel.com>
98 lines
2.6 KiB
Python
98 lines
2.6 KiB
Python
# Copyright (C) 2019 Intel Corporation. All rights reserved.
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#
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# SPDX-License-Identifier: BSD-3-Clause
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#
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import sys
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import board_cfg_lib
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DESC = """
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# New board kconfig generated by vm config tool
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# Modified by Kconfiglib (https://github.com/ulfalizer/Kconfiglib)
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"""
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VM_NUM_MAP_TOTAL_HV_RAM_SIZE = {
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# 120M
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2:0x7800000,
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# 150M
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3:0x9600000,
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# 180M
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4:0xB400000,
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# 210M
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5:0xD200000,
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# 240M
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6:0xF000000,
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# 270M
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7:0x10E00000,
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}
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def find_avl_memory(ram_range, hpa_size):
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"""
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This is get hv address from System RAM as host physical size
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:param ram_range: System RAM mapping
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:param hpa_size: fixed host physical size
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:return: start host physical address
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"""
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ret_start_addr = 0
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tmp_order_key = 0
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tmp_order_key = sorted(ram_range)
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for start_addr in tmp_order_key:
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mem_range = ram_range[start_addr]
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if mem_range > int(hpa_size, 10):
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ret_start_addr = start_addr
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break
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return hex(ret_start_addr)
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def get_ram_range():
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""" Get System RAM range mapping """
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# read system ram from board_info.xml
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ram_range = {}
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sys_mem_lines = board_cfg_lib.get_info(
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board_cfg_lib.BOARD_INFO_FILE, "<SYSTEM_RAM_INFO>", "</SYSTEM_RAM_INFO>")
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for line in sys_mem_lines:
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start_addr = int(line.split('-')[0], 16)
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end_addr = int(line.split('-')[1].split(':')[0], 16)
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mem_range = end_addr - start_addr
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ram_range[start_addr] = mem_range
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return ram_range
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def generate_file(config):
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"""Start to generate board.c
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:param config: it is a file pointer of board information for writing to
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"""
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err_dic = {}
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# this dictonary mapped with 'address start':'mem range'
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ram_range = {}
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if board_cfg_lib.VM_COUNT in list(VM_NUM_MAP_TOTAL_HV_RAM_SIZE.keys()):
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hv_ram_size = VM_NUM_MAP_TOTAL_HV_RAM_SIZE[board_cfg_lib.VM_COUNT]
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else:
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board_cfg_lib.print_red("VM num should not greater than 8", err=True)
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err_dic["baord config: total vm number error"] = "VM num should not greater than 8"
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return err_dic
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ram_range = get_ram_range()
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# reseve 16M memory for hv sbuf, ramoops, etc.
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reserved_ram = 0xf00000
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total_size = reserved_ram + hv_ram_size
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avl_start_addr = find_avl_memory(ram_range, str(total_size))
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hv_start_addr = int(avl_start_addr, 16) + int(hex(reserved_ram), 16)
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print('CONFIG_BOARD="{}"'.format(board_cfg_lib.BOARD_NAME), file=config)
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print("{}".format(DESC), file=config)
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print("CONFIG_HV_RAM_START={}".format(hex(hv_start_addr)), file=config)
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print("CONFIG_HV_RAM_SIZE={}".format(hex(hv_ram_size)), file=config)
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return err_dic
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